Flash-bombs: Developed by the British in the
1960s, these are supposed to non-lethal stun weapons. But there
have been
multiple
accounts of their fatal use. They work by flashing a light
that momentarily deactivates all light sensitive cells in the
human eye for about 5 seconds. The sound flash-bombs make disturb
the fluid in a victims ear. The bombs themselves are made with
holes in them, so they don't fracture, but they can burn anyone
nearby.

You can see a super short YouTube video of home made flash bombs going
off below:

Bean Bag Rounds: Also known as a flexible baton
round, or just, baton round. This is basically a lead bullet
wrapped in a fabric pillow and fired from a 12-gauge shot gun. It
can fly at 200 to 300 feet per second.

And here's what they can do to you:

And now we all know what tear gas does, but the
canisters that they come in can do a lot of damage to a body when
they explode as well.

Below, you can check out a short video of police hitting a rioter
in Vancouver with one earlier this year: